new cougar owner, Mansfield, Nottinghamshire area.

Welcome aboard - I can't add to the advice of the others, wishbones are the expensive one I had the same with mine but at least it passed MOT before I changed them.
 
Yes by then should have few more bits on the car too. Alloys springs decat and induction still need doing when funds allow
 
I added it to my watch list earlier. Whats involved in making my own one? I have some silicone hoses jubilee clips snd a cone filter...?